Add 30/20 and 1/90
1st number: 1 10/20, 2nd number: 1/90
30/20 + 1/90 is 68/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
30/20 = 30 × 9/20 × 9 = 270/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Add the two like fractions:
270/180 + 2/180 = 270 + 2/180 = 272/180 - 272/180 simplified gives 68/45
- So, 30/20 + 1/90 = 68/45
In mixed form: 123/45
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